Lol, Luffy didn't train his advCoC. He found out after getting hit by it. Only armament can be trained. Did you forget Luffy punching iron at Udon to learn ryou? Did you forget him not touching the tree to destory it?
Man, there always has been a trail for AdvCoC. Dont cope too much bro. You sounding like zolofans when they were yetting ZKK everyday.